Bicycle tire



J. MUSZYNS-KI.

BICYCLE TIRE.

APPLICATION FILED FEB. I6, 1922.

I IVA atfozneg Patented Oct. MI-

a.. citizen of Poland, residing atl ville, in the county of Hartford and State of Connecticut, have invented certain newretenes on. ie, i922.

lelie;

UNITED :STATES 'Partnr easier..

JOHN iviUsZYnsiri, or coritinsviritn,- feoivnnc'ricUtr.`

BIGYCJLE ,TIRE

.Application filed February 15, 1.1922., Serial No. 537,006.

T0 allfwhom t may concer-n .f

Be it known that I, JoHN MUsz-irNsKi, Collins and `useful Improvements'in Bicycle Tires,l of which the following is a specification.

This invention relates to certain new and useful` improvements `in tires i especially adapted for bicycles whereinv a casing or shoe is inflated in the absence of a lpneu-- matic inner tube, with interlocking devices `carried by thetire andthe wheel rim. j ,IA further object of theinvention resides.

in the provision of aseries of hollow pro-` jections carried by the inner face of the tire adapted forl reception in .correspondingly shaped sockets formed in the outer face of the wheel ring-the projectionsand sockets being so constructed as to prevent lateral movement of the tire relative to the wheel I'Hl'l; I

`The invention further einbodies-4 in a tire and rim or" the type -above set forth,'the` idea of providing a series of sockets in the outer faceof the wheel rim for the recep- `tion( of hollow projections carried by theinner face of the tire whereby upon inlation of the tire, such projections will be eirpanded and vinterlocked with the wheel rim.

Withthe above and other objects in view, the invention consists of the vnovel form, combination and arrangement ofA parts hereinafter more fully described, shown in the accompanying drawing and claimed.

In the drawing, wherein like reference characters indicate corresponding partsthroughout the several views,

Figure 1 is a side elevational view of a bicycle tire constructed in accordance with the present invention, showing the projections carried by the inner face of the tire for interlocking engagement with the wheel von line II-II of Fig. l,

Figure 3 is a cross sectional view of the tire and rim showing one of the projections carried by the tire received in a socket formed in the wheel rim,

` Figure 4 is a detail sectional view taken'V on line IV--IV of Fig. 3, showing the projections carried by the tire expanded and interlocked with the wheel rim.

Figure 5 is a plan view of a, portion of the inner face of the wheel rim showing the socket formed therein for receiving the iprojections carried by the tire with the .undercut sidewalls of the socket to coniine '.tlie projection carried by the tire, j

Figure 6 is a fragmentary detail sec yitional view of the tire showing a modified :form of projection, the latter being in Vthe iiolm of al hollow stud adapted `for expan- .sion when the tire is under air pressure,

Figure 7 is a detail sectional view showing fthe form oi tire illustrated in F ig. G opera- 4itively mounted upon a wheel rim,

Figure 8 shows fragmentary side and sec- '.tional views of another inodied forni of the :invention wherein solid plugs project inwardly from the tire,

' Figure 9i@ a cross sectional view of the itire shown in Fig. 8, and i j Figure 10 is a fragmentary transverse sectional view taken on line X-X of Fig. $9-, showing the solid vplug received in a socket formed in the wheel rim.

Referring more in detail to the accompanying drawing, and particularly to Figs. l to 5 there is illustrated abicycle tire and run, the tire being designated by the rei- Vterence numeral l of ordinary construction having an air filling valve stein 2.

eans is provided for `forming an interlocking connection between the tire l and `the wheel riin 3, such connection including -walls 5 and an outwardly cui-ved bottom wall 6, it being noted from an inspection of Fig. l of the drawing that the side walls 5 are undercut or taper toward the tire 1.

The formation of the socket in the wheel rim for receiving the plug projection carried by the tire is shown more clearly in Figs. 3, 4 and 5, the socket 7 having perpendicular side walls 8 extending circumferentially of the wheel rim while the side walls 9as shown in Figs. 4 and 5 are undercut for cooperation with the undercut or tapered side walls 5 of the plug. It is further noted that the plug and socket are arranged in pairs, the inclined side walls 5 and 9 of the plugs and sockets respectively of each adjacent pair extending in opposite direction transversely of the tire and rim, this arrangement preventing lateral mevementfof the tire relative to the rim.

In mounting the tire l on the rim assuming that the tire is in' a deflated con-l in Figs. 6 and 7, wherein the rim 2l is pro! vided with a plurality of circumferentially alined circular sockets l0 having the side walls thereof diverging toward the axis of the wheel. The tire l carries hollow eylindrieal projections ll that are received in the cylindrical socket, and upon inflation of the tire the cylindrical projections are expanded and caused to interlock with the rim sockets 10.

From the above detail description of the device in each of its forms, it is thought that the construction and operation thereof will at once be apparent, it being noted that inflation of the tire causes an expansion of the plugs to form an interlocking connection between the tire andv Wheel rim, the arrangement of the plugs and sockets shown in Figs. i to 5 of the drawing preventing noncreeping lateral movement of the tire relative to the wheel rim. Inflation of the plugs in sockets shown in Fig. 7 will also eliminate creeping movement of the tire relative to incise-s the rim and also provide a positive interlocking connection between the tire and rim.

Another modified form of the invention is shown in Figs. 8 to l0, wherein the inner wall of the tire l carries inwardly directed solid plugs l2 received in similarly shaped sockets 13 provided in the wheel rim 3. It will be seen that the solid plugs 12 being interlocked with the wheel rim, will prevent lateral creeping movement of the tire relative to the rim, and will also eliminate circumferential 4movement of the tire on the rim.

While there are herein shown and described the preferred embodiments of the present invention it is nevertheless to be understood that minor changes may be made therein Without departing from the spirit and scope thereof. i`

TWhat is claimed as new is l. In a bicycle tire of the type described, a pneumatic tire, hollow projections can ried by the inner face thereof, and a wheel rim having sockets formed in theouter face thereof to receive said tire projections to prevent movement of the tire relative to the rim. v

2. In a' bicycle tire and wheel rim of the type described, a pneumatic tire having projections of hollow construction car ied by the inner face thereof, each projection includingy a perpendicular side wall, inclined and undercut end walls and a curved bot` tom wall merging into the side of the tire, said projections being arranged in pairs with the perpendicular side walls of adjacent pairs disposed at opposite sides of the tire.

In testimony whereof I afhX my signature.

JOHN MUSZYNSKI. 

